#ifndef common
#define common

typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;

typedef signed char s8;
typedef signed short s16;
typedef signed int s32;

void outb(u16 port, u8 value);

void memset(u8 *dest, u8 val, u32 len);
void memcpy(u8 *dest, const u8 *src, u32 len);


#endif


